Patents by Inventor Koji Ohta

Koji Ohta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6912014
    Abstract: An effective pixel area calculating circuit (11) detects position information indicating the position of a target pixel in a frame. A lacking pixel creating circuit (12) determines the class of the target pixel from a plurality of classes in accordance with the position information, then selects a plurality of pixels from an input image signal as a prediction tap, and carries out arithmetic processing based on conversion data obtained in advance by learning for each class and the prediction tap, thus outputting an output image signal of higher quality than the input image signal.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: June 28, 2005
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Hideo Nakaya, Tsutomu Watanabe, Hideki Ohtsuka, Yasuaki Takahashi, Seiji Wada, Takahiro Nagano, Koji Ohta
  • Patent number: 6905659
    Abstract: An ozonizer has a flat plate-shaped low voltage electrode and a flat plate-shaped high voltage electrode facing a main surface of the low voltage electrode. The ozomzer also has a flat plate-shaped dielectric and a spacer forming a discharge gap in a laminating direction, located between the low voltage electrode and the high voltage electrode, a high voltage electrode cooling unit forming a cooling water passage insulated from the high voltage electrode inside the high voltage electrode. An alternating voltage is applied between the low voltage electrode and the high voltage electrode and a discharge is produced in the discharge gap, into which oxygen is injected, to produce ozone gas.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 14, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akaru Usui, Youichiro Tabata, Yujiro Okihara, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Patent number: 6869575
    Abstract: The ozonizer of this present invention is small in size, and capable of generating highly concentrated ozone with a high (generating) efficiency. A low voltage electrode includes a disc-shaped low voltage electrode main body facing a high voltage electrode and an extension at one side of the low voltage electrode main body, and the extensions are laminated in layers on a base via blocks, and a coolant inlet portion for supplying coolant to a coolant passage, a coolant outlet portion for exhausting coolant from the coolant passage, and an ozone gas outlet portion for exhausting ozone gas from the ozone gas passage pass through the extensions and the blocks, respectively, in a laminating direction of the discharge cells.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: March 22, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Youichiro Tabata, Yujiro Okihara, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Patent number: 6866829
    Abstract: An ozonizer has a flat plate-shaped low voltage electrode 7, a flat plate-shaped high voltage electrode 3 facing a main surface of the low voltage electrode 7. The ozonizer also has a flat plate-shaped dielectric 5 and a spacer for forming a discharge gap 6 of a thin thickness in a laminating direction provided between the low voltage electrode 7 and the electrode 3, an electrode cooling sheet 1 provided facing a main surface of the electrode 3 at a side opposite the discharge gap 6 for cooling the electrode 3. The ozonizer also has a thermal conducting/electric insulating sheet 2 sandwiched between the electrode 3 and the electrode cooling sheet 1. An alternating voltage is applied between the low voltage electrode 7 and the electrode 3 and a discharge is produced in the discharge gap 6 injected with oxygen gas to produce ozone gas.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: March 15, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yujiro Okihara, Youichiro Tabata, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Patent number: 6859155
    Abstract: The present invention relates to a data processing apparatus. Additional information is embedded in coded data obtained by encoding image data, without increasing the amount of the coded data, and the data in which the additional information is embedded is correctly decoded into the image data and the additional information. An embedded compression encoder 11 encodes image data according to a predetermined coding rule, and destroys the coding rule based on additional information, thereby embedding the additional information. A decoder 12 restores the embedded coded data, obtained by embedding the additional information in the coded data, into the coded data encoded according to the coding rule, thereby decoding the additional information and also decoding the coded data into the image data.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: February 22, 2005
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Kazutaka Ando, Koji Ohta
  • Publication number: 20040174930
    Abstract: A data processing apparatus processes input data and outputs the processed data. The data processing apparatus includes a data processing section for processing the input data by a predetermined processing method and outputting the processed data, an input-data evaluation section for evaluating the input data, an output-data evaluation section for evaluating the output data, and a real-time learning section for controlling such that the processing method is learned in real time according to the evaluation results obtained by the input-data evaluation section and the output-data evaluation section and the data processing section processes the input data according to the learned processing method, and thereby, improves the output data every moment.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 9, 2004
    Inventors: Tetsujiro Kondo, Naoki Kobayashi, Koji Ohta
  • Publication number: 20040155963
    Abstract: A feature extracting unit obtains sensor data from a plurality of sensors to calculate each feature. When an event determining unit determines the occurrence of an event based on each feature, a display data constructor generates remote-controller display data for displaying the event, and controls a remote-controller display device to display the remote-controller display data. When a user decision is input from a user input IF based on this display, a control unit controls the sensors to be turned ON or OFF. When an infrared sensor detects an abnormality, a microwave sensor whose power consumption is small after the infrared sensor is turned ON. When the microwave sensor detects an abnormality, a video camera and a microphone are turned ON, and the microwave sensor is turned OFF. A communication unit wirelessly transmits an image signal captured by the video camera and an audio signal processed by the microphone.
    Type: Application
    Filed: October 9, 2003
    Publication date: August 12, 2004
    Applicant: Sony Corporation
    Inventors: Tetsujiro Kondo, Naoki Kobayashi, Yasuhiro Fujimori, Yasuaki Takahashi, Koji Ohta, Naoki Takeda
  • Patent number: 6738203
    Abstract: A main object of the present invention is to provide a novel optical power limiting material of high performance being less susceptible to damages caused by heat occurring when an intensified laser beam is irradiated, having reversible characteristic and exhibiting a stable optical power limiting effect; production of the optical power limiting is simple and economical. The optical power limiting material of the present invention comprises a transparent substrate and an oxide(s) of at least one metal selected from the group consisting of of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Mo, Ru, In, Sn, Sb, Ta, W, Re, Os, Ir and Bi.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: May 18, 2004
    Assignee: Secretary, Agency of Industrial Science and Technology
    Inventors: Masanori Ando, Kenji Kamada, Kohei Kadono, Koji Ohta, Keiko Tawa, Takeyuki Tanaka
  • Patent number: 6728310
    Abstract: A data processing apparatus processes input data and outputs the processed data. The data processing apparatus includes a data processing section for processing the input data by a predetermined processing method and outputting the processed data, an input-data evaluation section for evaluating the input data, an output-data evaluation section for evaluating the output data, and a real-time learning section for controlling such that the processing method is learned in real time according to the evaluation results obtained by the input-data evaluation section and the output-data evaluation section and the data processing section processes the input data according to the learned processing method, and thereby, improves the output data every moment.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: April 27, 2004
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Naoki Kobayashi, Koji Ohta
  • Publication number: 20040052701
    Abstract: An ozonizer has a flat plate-shaped low voltage electrode and a flat plate-shaped high voltage electrode facing a main surface of the low voltage electrode. The ozonizer also has a flat plate-shaped dielectric and a spacer for forming a discharge gap having a thickness in a laminating direction, provided between the low voltage electrode and the electrode, an electrode cooling sheet facing a main surface of the electrode at a side opposite the discharge gap for cooling the electrode. The ozonizer also has a thermally conducting and electrically insulating sheet sandwiched between the electrode and the electrode cooling sheet. An alternating voltage is applied between the low voltage electrode and the electrode and a discharge is produced in the discharge gap so that, when filled with oxygen, ozone gas is produced.
    Type: Application
    Filed: May 28, 2002
    Publication date: March 18, 2004
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yujiro Okihara, Youichiro Tabata, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Publication number: 20030191594
    Abstract: An authentication processing apparatus for performing authentication based on a user's normal operation is provided. The authentication processing apparatus performs the authentication processing on the basis of operation information obtained from normally operating an information processing apparatus. Operation information obtained from operating an input unit by the user, such as a keyboard inputting mode, is obtained to serve as operation information, and the obtained operation information is checked against operation information registered in a database to perform authentication. Authentication is thus made possible without requiring the user to perform the special input processing for the authentication processing. Authentication is performed taking into consideration a plurality of pieces of operation information. With the checking processing in which less dispersed data is weighted, user authentication with high accuracy is made possible.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 9, 2003
    Inventors: Tetsujiro Kondo, Koji Ohta, Kenji Tanaka, Yukihiro Nakamura
  • Publication number: 20030142397
    Abstract: A main object of the present invention is to provide a novel optical power limiting material of high performance being less susceptible to damages caused by heat occurring when an intensified laser beam is irradiated, having reversible characteristic and exhibiting a stable optical power limiting effect; production of the optical power limiting is simple and economical.
    Type: Application
    Filed: March 3, 2003
    Publication date: July 31, 2003
    Inventors: Masanori Ando, Kenji Kamada, Kohei Kadono, Koji Ohta, Keiko Tawa, Takeyuki Tanaka
  • Publication number: 20030140148
    Abstract: The present invention relates to an information processing apparatus which allows high-quality contents to be easily obtained. A WWW browser section 81 sends search request information which includes a keyword for web pages, input by the user, to an evaluation and search server 7. A search section 92 of the evaluation and search server 7 receives the search request information through a transmitting and receiving control section 91, and searches a WWW data base 96 for web pages corresponding to the reported keyword. The search section 92 reports the URLS, access information, of web pages obtained as a search result, to an evaluation section 95 to request the calculation of an evaluation value for each web page.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 24, 2003
    Inventors: Tetsujiro Kondo, Koji Ohta
  • Publication number: 20030095900
    Abstract: The ozonizer of this present invention is small in size, and capable of generating highly concentrated ozone with a high (generating) efficiency. A low voltage electrode 29 includes a disc-shaped low voltage electrode main body 29a facing a high voltage electrode 8 and an extension 29b equipped at one side of the low voltage electrode main body 29a, and the extensions are laminated in a plurality of layers on a base 1 via blocks 30, and a coolant inlet portion 42 for supplying coolant to a coolant passage 34, a coolant outlet portion 35 for exhausting coolant from the coolant passage 34 and an ozone gas outlet portion 33 for exhausting ozone gas from the ozone gas passage 36 are formed passing through the extensions 29b and the blocks 30, respectively, in a laminating direction of the discharge cells 28.
    Type: Application
    Filed: July 9, 2002
    Publication date: May 22, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Youichiro Tabata, Yujiro Okihara, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Publication number: 20030095898
    Abstract: An ozonizer has a flat plate-shaped low voltage electrode 7, a flat plate-shaped high voltage electrode 3 facing a main surface of the low voltage electrode 7. The ozonizer also has a flat plate-shaped dielectric 5 and a spacer for forming a discharge gap 6 of a thin thickness in a laminating direction provided between the low voltage electrode 7 and the high voltage electrode 3, a high voltage electrode cooling unit 2 for forming a cooling water passage 2c insulated from the high voltage electrode 3 inside the high voltage electrode 3. An alternating voltage is applied between the low voltage electrode 7 and the high voltage electrode 3 and a discharge is produced in the discharge gap 6 injected with oxygen gas to produce ozone gas.
    Type: Application
    Filed: May 28, 2002
    Publication date: May 22, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akaru Usui, Youichiro Tabata, Yujiro Okihara, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Publication number: 20030095899
    Abstract: An ozonizer has a flat plate-shaped low voltage electrode 7, a first and second high voltage electrode 3-1, 3-2 provided facing the low voltage electrode 7, a first dielectric 5-1 and first spacer provided between the low voltage electrode 7 and the electrode 3-1, a second dielectric 5-2 and a second spacer provided between the electrode 7 and the electrode 3-2. The ozonizer also has a first electrode cooling sheet 1-1 provided facing the electrode 3-1 at a side opposite a first discharge gap 6-1, a second electrode cooling sheet 1-2 provided facing the electrode 3-2 at a side opposite a second discharge gap 6-2, a first thermal conducting/electric insulating sheet 2-1 sandwiched between the first high voltage electrode 3-1 and the first electrode cooling sheet 1-1 and a second thermal conducting/electric insulating sheet 2-2 sandwiched between the second high voltage electrode 3-2 and the second electrode cooling sheet 1-2.
    Type: Application
    Filed: May 29, 2002
    Publication date: May 22, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yujiro Okihara, Youichiro Tabata, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
  • Publication number: 20030030753
    Abstract: An effective pixel area calculating circuit (11) detects position information indicating the position of a target pixel in a frame. A lacking pixel creating circuit (12) determines the class of the target pixel from a plurality of classes in accordance with the position information, then selects a plurality of pixels from an input image signal as a prediction tap, and carries out arithmetic processing based on conversion data obtained in advance by learning for each class and the prediction tap, thus outputting an output image signal of higher quality than the input image signal.
    Type: Application
    Filed: February 1, 2002
    Publication date: February 13, 2003
    Inventors: Tetsujiro Kondo, Hideo Nakaya, Tsutomu Watanabe, Hideki Ohtsuka, Yasuaki Takahashi, Seiji Wada, Takahiro Nagano, Koji Ohta
  • Publication number: 20030001757
    Abstract: The present invention relates to a data processing apparatus. Additional information is embedded in coded data obtained by encoding image data, without increasing the amount of the coded data, and the data in which the additional information is embedded is correctly decoded into the image data and the additional information. An embedded compression encoder 11 encodes image data according to a predetermined coding rule, and destroys the coding rule based on additional information, thereby embedding the additional information. A decoder 12 restores the embedded coded data, obtained by embedding the additional information in the coded data, into the coded data encoded according to the coding rule, thereby decoding the additional information and also decoding the coded data into the image data.
    Type: Application
    Filed: June 17, 2002
    Publication date: January 2, 2003
    Inventors: Tetsujiro Kondo, Kazutaka Ando, Koji Ohta
  • Patent number: 6430524
    Abstract: A data processing apparatus for processing input data and for outputting the processed data as output data achieves effective noise reduction. An input-reliability calculator calculates an input reliability indicating the reliability of the input data. An output-reliability calculator calculates an output reliability indicating the reliability of the output data. A correction-value calculator calculates a correction value for correcting the input reliability. A data processing unit processes the input data based on the input reliability corrected with the correction value and the output reliability, thereby obtaining the output data.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: August 6, 2002
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Koji Ohta, Naoki Kobayashi
  • Publication number: 20020099763
    Abstract: An information processing apparatus for providing content data to terminal units includes a content data storage unit, a communication unit, an input information storage unit, an analysis unit, and a processing unit. The content data storage unit stores a plurality of pieces of content data. The communication unit transmits content data stored in the content data storage unit to a plurality of terminal units, and receives input information of each user with respect to the transmitted content data. The input information storage unit stores the input information received by the communication unit for each user. The analysis unit analyzes the preference of a target user on the basis of the input information of a similar user, which resembles the input information of the target user, stored in the input information storage unit. The processing unit processes content data to be transmitted to the terminal units in accordance with the analysis results by the analysis unit.
    Type: Application
    Filed: September 7, 2001
    Publication date: July 25, 2002
    Inventors: Tetsujiro Kondo, Koji Ohta